Cross-chain · Ethereum → Arbitrum One
Swap WBTC from Ethereum to WETH on Arbitrum One
Swap WBTC from Ethereum to WETH on Arbitrum One. Traders moving wrapped bitcoin into wrapped ETH on chain 42161 receive Arbitrum WETH.
You spend WBTC at 0x2260FAC5E5542a773Aa44fBCfeDf7C193bc2C599 on Etherscan, an 8 decimal ERC-20. You receive 0x82aF49447D8a07e3bd95BD0d56f35241523fBab1 on Arbiscan. That is not mainnet WETH at 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2, and it is not bitcoin. Chain id 1 gas is ETH, about 12 seconds a block. Chain id 42161 gas is a separate ETH balance, and this WETH cannot pay it. The network is Arbitrum One, not Nova. The Arbitrum WETH shows up only after the wallet leaves Ethereum.
Two wrappers on two chains
Check Arbitrum WETH, not the native line
Gas that neither wrapper can pay
When the source-chain pool is the better book
Legal
Risk disclosure
XAUConnect is a non-custodial swap aggregator. Digital assets are volatile and may lose value rapidly. Content on this page is educational and not investment advice. Verify every contract address on the official block explorer before approving a transaction.
Frequently asked questions
What is the best way to swap WBTC from Ethereum to WETH on Arbitrum One?
You spend WBTC at 0x2260FAC5E5542a773Aa44fBCfeDf7C193bc2C599 on Etherscan, an 8 decimal ERC-20. You receive 0x82aF49447D8a07e3bd95BD0d56f35241523fBab1 on Arbiscan.
Is the WETH the Ethereum WETH contract?
No. Ethereum WETH is 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2 on Etherscan. This route pays 0x82aF49447D8a07e3bd95BD0d56f35241523fBab1 on Arbiscan. Native ETH is the gas coin on chain id 1 and, separately, on Arbitrum One. The contract you can spend as WETH on chain 42161 is the Arbitrum one.
Can this WBTC go to a Bitcoin address instead?
Not on this route. WBTC at 0x2260FAC5E5542a773Aa44fBCfeDf7C193bc2C599 is an ERC-20 on Ethereum. The output is an ERC-20 on Arbitrum One. Neither explorer is a Bitcoin explorer. If you need bitcoin on the Bitcoin chain, this pair is the wrong tool.
What fails if the wallet holds only WBTC?
The Ethereum transaction. Chain id 1 charges ETH, and WBTC cannot substitute. Add ETH before you approve 0x2260FAC5E5542a773Aa44fBCfeDf7C193bc2C599. On the far side, add ETH on Arbitrum One or the WETH will be unable to move. Blocks on Ethereum are about 12 seconds. Nova is the wrong network.
Trade on XAUConnect
Open the swap page with this cross-chain route pre-selected, then connect your wallet on the source chain to quote and execute. You keep the keys.
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